Using SwiftUI. My Slider/Side-menu launches new Views just fine when clicked but click <back> button and now all the options are 'dead' - swiftui

Question

Using SwiftUI and a slider/side menu tutorial that I have augmented in order to put actions on each of the side menu selections.
When the side menu is displayed and I tap a menu option, it works great and takes me to a new view with a menu item. But when i tap on and see the side menu still in place, all the menu items are not dead. The menu items still animate a click (with a flicker) but nothing happens. I have to close the side menu, reopen it, and then the menu items work once again - one time.
Can anyone tell me why this is happening?
Here is the pretty contentview, the mainview, and the sidemenu view.
//ContentView.swift
import SwiftUI
struct ContentView: View {
#State var showMenu = false
var body: some View {
let drag = DragGesture()
.onEnded {
if $0.translation.width < -100 {
withAnimation {
self.showMenu = false
}
}
}
return NavigationView {
GeometryReader { geometry in
ZStack(alignment: .leading) {
MainView(showMenu: self.$showMenu)
.frame(width: geometry.size.width, height: geometry.size.height)
.offset(x: self.showMenu ? geometry.size.width/2 : 0)
.disabled(self.showMenu ? true : false)
if self.showMenu {
MenuView()
.frame(width: geometry.size.width/2)
.transition(.move(edge: .leading))
}
}
.gesture(drag)
}
.navigationBarTitle("Side Menu", displayMode: .inline)
.navigationBarItems(leading: (
Button(action: {
withAnimation {
self.showMenu.toggle()
}
}) {
Image(systemName: "line.horizontal.3")
.imageScale(.large)
}
))
}
}
}
struct MainView: View {
#Binding var showMenu: Bool
var body: some View {
Button(action: {
withAnimation {
self.showMenu = true
}
}) {
Text("Show Menu")
}
}
}
struct ContentView_Previews: PreviewProvider {
static var previews: some View {
ContentView()
}
}
and here is the sidemenu view.
//MenuView.swift
import SwiftUI
struct PlayerView: View {
#State var showMenu = true
//#EnvironmentObject var session: SessionStore
var body: some View {
VStack{
//self.showMenu = true
Text("Manage Players Here").foregroundColor(.red)
}
}
}
struct MenuView: View {
#State var showMenu = true
var body: some View {
VStack(alignment: .leading) {
HStack() {
NavigationLink(destination: PlayerView()) {
HStack(){
Image(systemName: "person")
.foregroundColor(.gray)
.imageScale(.large)
Text("Players")
.foregroundColor(.gray)
.font(.headline)
}
}
}
.padding(.top, 100)
}
.padding()
.frame(maxWidth: .infinity, alignment: .leading)
.background(Color(red: 32/255, green: 32/255, blue: 32/255))
.edgesIgnoringSafeArea(.all)
}
}
struct MenuView_Previews: PreviewProvider {
static var previews: some View {
MenuView()
}
}
enter code here

Answer 1

1) Binding var in the MenuView
2) OnAppear{} with Zstack to turn off the showMenu
struct ContentView: View {
#State var showMenu = false
var body: some View {
let drag = DragGesture()
.onEnded {
if $0.translation.width < -100 {
withAnimation {
self.showMenu = false
}
}
}
return NavigationView {
GeometryReader { geometry in
ZStack(alignment: .leading) {
MainView(showMenu: self.$showMenu)
.frame(width: geometry.size.width, height: geometry.size.height)
.offset(x: self.showMenu ? geometry.size.width/2 : 0)
.disabled(self.showMenu ? true : false)
if self.showMenu {
MenuView(showMenu: self.$showMenu)
.frame(width: geometry.size.width/2)
.transition(.move(edge: .leading))
}
}
.gesture(drag).onAppear {
self.showMenu = false
}
}
.navigationBarTitle("Side Menu", displayMode: .inline)
.navigationBarItems(leading: (
Button(action: {
withAnimation {
self.showMenu.toggle()
}
}) {
Image(systemName: "line.horizontal.3")
.imageScale(.large)
}
))
}
}
}
struct MainView: View {
#Binding var showMenu: Bool
var body: some View {
Button(action: {
withAnimation {
self.showMenu = true
}
}) {
Text("Show Menu")
}
}
}
struct PlayerView: View {
#State var showMenu = true
//#EnvironmentObject var session: SessionStore
var body: some View {
VStack{
//self.showMenu = true
Text("Manage Players Here").foregroundColor(.red)
}
}
}
struct MenuView: View {
#Binding var showMenu: Bool // = true
var body: some View {
VStack(alignment: .leading) {
HStack() {
NavigationLink(destination: PlayerView()) {
HStack(){
Image(systemName: "person")
.foregroundColor(.gray)
.imageScale(.large)
Text("Players")
.foregroundColor(.gray)
.font(.headline)
}
}
}
.padding(.top, 100)
}
.padding()
.frame(maxWidth: .infinity, alignment: .leading)
.background(Color(red: 32/255, green: 32/255, blue: 32/255))
.edgesIgnoringSafeArea(.all)
}
}